Sash-lock for windows.



No. 821,097. PATENTED MAY 22, 1906.

E. J. GLAGKIN. l SASH LOCK FOR WINDOWS.

' APPLIOATION FILED DB0.15.1904.

2 SHEETS-SHEET 1.

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2 SHEETS-SHEET 2.

E. J. GLAGKIN. SASH LOCK FOR WINDOWS.

APPLIOATION 'FILED DB0.15, 1904.

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EDWARD J. GLACKIN, OF CHICAGO, ILLINOIS.

SASH-LOCK FOR WINDOWS'.

Specification of Letters Patent.

emmen nay 22', 1906.

Application filed December 15, 1904. Serial No. 236,932.

a A7 w to ralse or lower the upper sash, thereby dispensing with the useof poles or any other awkward expedient.

My improved sash-lock also serves as a burglar-proof lock, to prevent asash which has been opened a small amount for ventilation from beingopened from without far enough to admit an intruder.

It further serves as a means of drawing the sashes together tightlyenough in any relative positionlto prevent their rattling.

To illustrate my invention, I annex hereto two sheets of drawings, inwhich the same reference characters are used to designate identicalparts in. all the figures, of which- Figure 1 is a front elevation of awindow having my invention in one form applied thereto. Fig. 2 is ahorizontal section, on an enlarged scale, on'the line A A of Fig. 1.Fig. 3 is a perspective view of a portion of one side of the window,showing more clearly some of the details of the invention. Fig. 4 is adetail in section, on an enlarged scale, on the line B B of Fig. 1. Fig.5 is na perspective view similar to Fig. 3, but showing a modified form.Fig. 6 is a top plan view of a portion of the mechanism shown in Fig. 5.Fig. 7 is a view similar to Fig. 1, but showing still anothermodificaton in which the lockingdogs swing in a vertical instead of ahorizontal plane. Fig. S is a horizontal view in section on the line B Bof Fig. 7. Fig. 9 is a side elevation in sectionv on the line C C ofFig. 7, but on anenlarged scale; and Fig. 10 is a detail viewillustrating still anothermodi- Iication.

screwed to the front edge of the side thereof, with its teeth pointingtoward the center. In order to move the upper sash from the lowerwithout causing any tendency of either sash to bind in the casing, Ipreferably provide the locking mechanism at both sides of the window, sothat the sashes will be fastened to each other at both sides, and as aresult if the lower sash is lifted from .the center or from two pointsequally distant from the center as is customary, both sashes willbemoved upward vertically and without any resistance other than thatoffered by their combined weight. Of course it will be understood thatthey can only be moved together when one of them is open.

The movable members of the locking mechanisms consist of the pivoteddogs 14 and 15, which have their operating ends hook-shaped and providedwith the noses 16, that enter the teeth of the racks, and as the tworacks face each other and it is desirable to connect the two dogs, so asto be moved simultaneously by the single link 17, this link is pivotedto the dogs on opposite sides of their fulcrums, as is clearly shown inFig. 2, so that when either of the dogs is swung from its fulllineposition of Fig. 2 to its dotted-line position the other dog iscompelled to move therewith and simultaneously assume the same position,and vice versa. These dogs are pivoted to the top of the lower sash, thepivotpins preferably being secured in the plates 18, secured to the topof the sash, as clearly shown.`

Where my invention is applied to a window v of ordinary height, in whicha person of average height can ordinarily reach the top of the lowersash, I provide the spring-pressed plunger 19, mounted to slide in asuitable bearing 20, secured on the under side of the arm 21 of the dog14 and cooperating with the segmental ratchet 22, formed integral withor secured upon the top of the plate 18, upon which the dog is pivoted.The teeth of the ratchet preferably point in the direction shown, sothat when the dog is swung into locking position it is held thereautomatically until it is released by withdrawing the plunger 19, whichfor this purpose has its outer end provided with the head 23.y It willbe seen that by use of this construction and location of the plungerthe'locking mechanism can be manipulated by one hand.

When my invention is. applied to a large window of such a height that itis inconven- IIO ient or impossible to reach to the top of the lowersash, instead of employing the handle 23 to operate the dog 14 I journalin the bearings 25 and 26, secured to the lower sash, the verticalrock-shaft 27, the lower end of which is provided with a projectingplate or arm 28, of suitable shape to be seized in order to rock theshaft, and upon its upper end I provide the arm 29, which has a pin 30projecting downwardly into the slot 31, formed in the dog 14a. Insteadof having the segmental ratchet 22 secured to the dog 14 I in that caseemploy the similar ratchet 22a, secured to the rock-shaft 27in asuitable position so that the spring-pressed plunger 19al isconveniently located, so that it can bewithdrawn by means of its head23a. By the mechanism shown it will be apparent that the lower sash canbe raised to any desired distance and the locking mechanism thenoperated to lock the two sashes together, after which by lowering thelower sash the upper sash will be drawn from the top to the desiredposition. When it is to be closed,the lower sash is then lifted untilthe upper sash is closed, when by unlocking the ymechanism the lowersash can be closed and the two sashes locked together with the windowentirely closed.

To draw the sashes together and prevent any tendency to rattle, the rack13is preferably provided with the flange 32, so that the hooked end 16of the dogs engaging the same when they are in locking position willdraw the two sashes together.

In Figs. 7 to 9 I have shown a 'modification, in which the dogs 14 and15/ are pivoted on horizontal axes, being rigidly secured to therock-shaft 17 which is journaled inthe bearings 18, secured on the topof the lower sash 11. The dogs have the hook-shaped ends 163/, asbefore, which cooperate with the teeth of the rack-bars 13, which aresecured to the sides of the upper sash and project outwardly from thewindow instead of toward each other. Where they are used in connectionwith a high window, as in the form first illustrated, the dog 14 isprovided with an arm 20, to which is pivoted a vertically-sliding rod 27which slides through a combined catch and bearing piece 26, secured onthe side of the lower sash. The rod is provided with the rack-teeth 22,with which the springpressed plunger 19 cooperates, it being providedwith the head 23, by which it is manipulated. The lower end of the rod27 is preferably provided with a finger-piece 28', by which the rod ismanipulated. The rackteeth 22 are preferably directed, as shown, so thatthe rod can be shoved up freely to throw the noses 16 of the dogs intoengagement with the teeth of the rack-bars to lock the sashes togetherin any desired position of adjustment, and the ratchet will hold them intheir adjusted position. It will also be apparent that the pressure ofthe dog will tend to separate the sashesinstead of to draw themtogether, as in the preferred form but this separating them and pressingthe sashes away from each other and against the casing-strips alsoserves to prevent the rattling of the sashes.

In Fig. 10 I have illustrated the last-men tioned form as adapted foruse in a window of the ordinary height, where the arm 2Gb is providedwith the spring-pressed plunger 19h, cooperating with the ratchet 22h,secured to or preferably formed integrally with the bearing 18h. Withthis construction it will be apparent that the locking mechanism can bethrown into or out of operation by the use of one hand.

I/Vhile I have shown and described my invention as embodied in the formwhich I at present consider best adapted to carry out its purposes, itwill be understood that it is capable of modifications and that I do notdesire to be limited in the interpretation of the following claimsexcept as may be necessitated by the state of the prior art.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is

1. In a window, the combination with a casing, of the two sashes movabletherein and relative to each other, a plurality of locking-` dogs on onesash, a corresponding plurality of members on the other sash adapted tobe engaged by the dogs in any desired relative position of the sashes,said dogs being adapted to engage said members without interfering withthe movement of the sashes relative to the casing and connections forsimultaneously causing the dogs to engage the members whereby the lowersash may be used for raising and lowering the upper sash any desiredamount.

2. In a window, the combination with a casing, of the two sashes movabletherein and relative to each other, a plurality of lockingdogs on onesash, a corresponding plurality of rack-bars on the other sash adaptedto be engaged by the dogs, said dogs being adapted to engage saidrack-bars without interfering with the movement of the sashes relativeto the casing and connections for simultaneously causing the dogs toengage the teeth of the rack-bars whereby the lower sash may be used forraising and lowering the upper sash any desired amount.

3. In a window, the combination with a casing, of the two sashes movabletherein and relative to each other, a plurality of pivoted locking-dogson one sash, a corresponding plurality of members on the other sashadapted to be engaged by the dogs in any desired relative position ofthe sashes, said dogs being adapted to engage said members withoutinterfering with the movement of the sashes relative to the casing and alink connecting the dogs to compel their simultaneous move- IOO IIO

ment to engage the members whereby the lower sash may be used forraising and lowering the upper sash any desired amount.

4. In a window, the combination with a casing, of the two sashes movabletherein and relative to each other, a plurality of lockingdogs on onesash, a corresponding plurality of members on the other sash adapted tobe engaged by the dogs in any desired relative position ofthe sashes,said dogs being adapted to engage said ing with the movement of thesashes relative to the casing and automaticallyoperating mechanism tohold the dogs and members in engagement whereby the lower sash may beused for raising and lowering the upper sash any desired amount.

' 5. In a window, the combination with a casing, of the two sashesmovable therein and relative to each other, a plurality of pivotedlocking-dogs on one sash, a correspon ding plurality of members on theother sash adapted to be engaged by the dogs in any desired relativeposition of the sashes, said dogs being adapted to engage said memberswithout interfering with the movement of the sashes relative to thecasing a link connecting the dogs to compel their simultaneous movementto engage the members, and automaticallyoperating mechanism to hold thedogs and members in engagement whereby the lower sash may be used forraising and lowering the upper sash any desired amount.

6. In a window, the combination with a casing, of the two sashes movabletherein relative to each other, rack-bars on the sides of the outer sashwith their teeth facing each other, the pivoted locking-dogs adapted toengage the teeth of the racks, and a link pivoted to the dogs onopposite sides of their pivots, for the purpose described.

7. In a window, the combination with a casing, oi the two sashes movabletherein and relative to each other, the rack-bars on the sides of theouter sash with their teeth facing each other, the pivoted dogs havingthe hookshaped ends mounted on the inner sash, and the flanges securedon the racks between their teeth and the pivots of the dogs.

8. In a window, the combination with a casing, ofthe two sashes movabletherein and relative to each other, a plurality of lockingdogs on thetop of the lower sash, a corresponding plurality of members on the sidesof the upper sash adapted to be engaged by the dogs in any desiredrelative position of the sashes, said dogs being adapted to engage saidmembers without interfering with the movement of the sashes relative tothe casing and mechanism extending below the top of the lower sash foroperating the dogs to cause them to engage with the members, whereby thelower sash may be used for raising and lowering the upper sash anydesired amount.

9. In a window, the combination with the members without interfer-`casing, of two sashes movable therein and relative to each other, aplurality of lockingdogs on the top of the lower sash, a correspondingplurality of members on the sides of the upper sash adapted to beengaged by the dogs in any desired relative position of the sashes, saiddogs being adapted to engage said members without interfering with themovement ofthe sashes relative to the casing and a single mechanismextending below the top of the lower sash for simultaneously operatingall of the dogs to cause them to engage with the members.

10. In a window, the combination with a casing, ofthe two sashes movabletherein and relative to each other, a locking-dog pivoted to swing in ahorizontal plane on the top of the lower sash, a member on the side ofthe other sash adapted tobe engaged by the dog in any desired relativeposition of the sashes, a vertical rock-shaft journaled on the lowersash having an operating-arm on its lower end, connections between thepivoted dog and the top of the rock-shaft, and means for securing theshaft in the locked position of the parts.

11. In a window, the combination with a casing, of the two sashesmovable therein and relative to each other, a locking-dog pivoted toswing `in a horizontal plane on the top of the lower sash, a member onthe side of the other sash adapted to be engaged by the dog in anydesired relative position of the sashes, a vertical rock-shaft journaledon the lower sash having an operating-arm on its lower end, connectionsbetween the pivoted dog and the top of the rock-shaft, and means forsecuring the shaft in the locked position of the parts, said meansconsisting of a segmental ratchet secured to the rock-shaft and havingbeveled teeth, and a spring-pressed plunger cooperating therewith.

12. In a window, the combination with a casing, of the two sashesmovable therein and relative to each other, the racks secured to thesides of the upper sash and having their teeth facing each other, thecooperating dogs pivotally mounted on the top of the lower sash, thelink connecting said dogs and secured thereto on opposite sides of theirpivots, the vertical rock-shaft journaled on the lower sash, the arm foroperating said rockshaft on the lower end, the arm on the upper end ofthe rock-shaft having the pin, and the arm on the adjacent dog havingthe slot with which the pin cooperates.

13. In a window, the combination with a casing, of the two sashesmovable therein and relative to each other, locking-dogs carried on thetop of the lower sash immediately adjacent the sides of the upper sashand eX- tending when in their locking position into the plane of theupper sash, but not otherwise, so that the sashes can pass each otherwhen unlocked, members on the sides of the upper sash with which thedogs are adapted to engage in any position of adjustment withoutinterfering with the movement of the sashes relative to the casing, andconnections for simultaneously causing the dogs to engage the members,whereby the lower sash may be used for raising and lowering the uppersash any desired amount.

14;. In a window, the combination with the casing, of the two sashesmovable therein and relative to each other, locking-dogs pivoted on thetop of the lower sash immediately adjacent the sides of the upper sashand having their noses extending when in their locking position into theplane of the upper sash, but not otherwise, so that the sashes can passeach other when'unlocked, rack-bars on the sides of the upper sash withwhich the dogs are adapted to engage inl any position of adj ustmentwithout interfering with the movement of the sashes relative to thecasing, and connections for simultaneously causing the dogs to engagethe rack-bars, whereby the lower sash may be used for raising andlowering the upper sash any desired amount.

15. In a window, the combination with the casing, ofthe two sashesmovable therein and relative to each other, locking-dogs pivoted on thetop of the lower sash immediately adjacent the sides ofthe upper sashand having their noses extending when in their locking position into theplane of the' upper sash, but not otherwise, so that the sashes can passeach other when unlocked, rack-bars on the sides of the upper sash withwhich the dogs are adapted to engage in any position of adjustmentwithout interfering with the movement of the sashes relative to thecasing, connections for simultaneously causing the dogs to engage therack-bars, whereby the lower sash may be used for raising and loweringthe upper sash any desired amount, and a spring-pressed ratchet forholding the dogs in engagement with the members, substantially as andfor the purpose described.

In witness whereof I have hereunto set my hand this December, 1904.

EDWARD J. GLACKIN.

